Hello! For an assignment I am planning to investigate the natural frequency modes of a circular membrane using the "Chladni technique". Usually, these Chladni plates are made out of metal, allowing them to be firm but still quite flexible. For my assignment I am planning on using a thin layer of plexiglass, however when I have a look around online I cannot find anyone else that have tried this and so I am a bit unsure whether this will work out. Would using plexiglass be a good idea?